Raw Material Supplier Auditing

Service summary

An assessment of supplier practices affecting raw material identity, quality and consistency. The audit examines how sourcing, specifications and process controls support the requirements of the material’s intended use.

The review helps purchasing and technical teams evaluate supply-related exposure. Conclusions concern sampled supplier controls and do not replace material testing, batch acceptance or the buyer’s material approval responsibilities.

Key objectives

• Examine material identity and specifications
• Evaluate sourcing and traceability controls
• Assess contamination and variation risks
• Support material supplier oversight

Methodology

Selected materials and batches are traced through the supplier’s sourcing, processing and release controls against the buyer’s defined requirements.

• Agree materials, intended uses, specifications and assessment criteria.
• Review sourcing arrangements, material histories and relevant complaints.
• Select representative batches and higher-risk upstream inputs.
• Observe handling, processing, storage and contamination controls.
• Trace batch identity, test evidence and release decisions.
• Evaluate changes, deviations and supplier response records.
• Report findings supporting the buyer’s material approval and monitoring.

Key outcomes

References: [G04]

• Raw material supplier assessment
• Batch traceability findings
• Specification control evidence
• Documented material-related weaknesses